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Buzz coil or auto coil


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  #1  
Old 12-06-2004, 11:10:40 PM
Don Nelson Don Nelson is offline
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Smile Buzz coil or auto coil

I have a cushman binder should I buy a buzz coil or just use a 6 volt auto coil. It just goes in the battery box, it not like anyone will see it. Any opinions . Don
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Old 12-06-2004, 11:21:50 PM
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Harry Harry is offline
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Default Re: Buzz coil or auto coil

It depends upon what type of point setup you have. A standard coil with points and condensor will fire at the time the points open after being closed. A buzz coil will fire at the time that the points close and keep firing until they open again.

Buzz coil ignition can get a bit wild on a two-cycle engine if your points stay closed too long.

http://www.old-engine.com/magbuz.htm
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Old 12-06-2004, 11:39:25 PM
D.Smith D.Smith is offline
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Default Re: Buzz coil or auto coil

Don , Harry is right About the points. My 8 hp Cushman uses two buzz coils. D. Smith
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Old 12-06-2004, 11:51:17 PM
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Junkologist Junkologist is offline
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Default Re: Buzz coil or auto coil

A buzz coil and an automotive coil are not interchangeable. They are for two different kinds of ignition setups. Your engine will have what's called a timer, which is nothing but a set of contacts that close a circuit at the exact point of ignition. When the circuit is closed, the buzz coil is energized and the spark plug fires. The automotive coil is used where ignition points and a condenser are employed. The coil will only fire the spark plug when the points open up and induce high voltage in the secondary coil. The condenser is added in the primary circuit to prevent arcing at the points. Unless you have modern ignition points installed on your engine, you need to get a buzz coil.

Mike
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Old 12-07-2004, 05:32:19 AM
David Greenwalt David Greenwalt is offline
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Default Re: Buzz coil or auto coil

I'm not familiar with the binder engine. Is it hit n miss? There's a local fellow here, Sam Morgan, who hooked up a automotive coil and condensor on an Economy engine for another collector. I was watching them do this. He didn't use points, he wired to a bolt connected to the engine, and one on the trip rod. When the one on the trip rod made contact with the one on the engine, he got his spark. Crude, but worked quite effectively. This was on a hit n miss, don't know if it would work on a throttler. David.
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Old 12-07-2004, 06:08:54 AM
Dick Welty Dick Welty is offline
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Default Re: Buzz coil or auto coil

The timer on a Cushman binder engine is intended for a buzz coil and although it will work with an ignition coil The timing will be more difficult. I would recommend just using the buzz coil it was intended to use. +You can hear the buzz coil when you are trying to start the engine. With an ignition coil you don't know when it is working without a spark tester or a spark gap in the circuit.
Dick
 

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